Nestor F. Esnaola

Simplified Staging for Hepatocellular Carcinoma

PURPOSE The current American Joint Committee on Cancer (AJCC) staging system for hepatocellular carcinoma (HCC) fails to stratify patients adequately with respect to prognosis. PATIENTS AND METHODS The ability of the currently proposed tumor (T) categories to effectively stratify the survival of 557 patients who underwent complete resection for HCC at four centers was examined. Independent predictors of survival were combined into a new staging system. RESULTS Using the current AJCC T classification, patients with T1 and T2 tumors had similar 5-year survivals (P =.6). In addition, the survival of patients with multiple bilobar tumors (T4) matched that of T3 patients (P =.5). Independent predictors of death were major vascular invasion (P <.001), microvascular invasion (P =.001), severe fibrosis/cirrhosis of the host liver (P =.001), multiple tumors (P =.007), and tumor size greater than 5 cm (P =.01). Based on our results, a simplified stratification is proposed: (a) patients with a single tumor and no microvascular invasion, (b) patients with a single tumor and microvascular invasion or multiple tumors, none more than 5 cm, and (c) patients with either multiple tumors, any more than 5 cm, or tumor with major vascular invasion (P <.001). Severe fibrosis/cirrhosis had a negative impact on survival within all categories. The survival of patients with lymph node involvement matched that of patients with major vascular invasion (P =.3). CONCLUSION The current AJCC staging system for HCC is unnecessarily complex. We propose a simplified model of stratification that is based on vascular invasion, tumor number, and tumor size and incorporates the effect of fibrosis on survival.

Predictors of locoregional recurrence among patients with early-stage breast cancer treated with breast-conserving therapy

BackgroundOur aim was to identify predictors of locoregional recurrence (LRR) in patients with early-stage breast cancer treated with breast-conserving therapy (BCT) and long-term follow-up.MethodsFrom 1970 to 1994, 1153 patients with stage I to II breast cancer underwent BCT and radiotherapy at our institution. Patients with prior breast cancer or other primary malignancies were excluded. Clinical and pathologic characteristics evaluated were age, race, tumor size, stage, pathologic tumor margins, axillary nodal involvement, estrogen and progesterone receptor status, Blacks nuclear grade, type of surgery, and use of adjuvant therapy.ResultsOf 1083 patients, 54% presented with stage I disease and 46% with stage II disease. Median age was 50 years, and median follow-up was 9 years. Axillary nodes were positive in 31% of the patients who underwent axillary dissection. LRR developed in 6%, LRR followed by systemic recurrence in 5%, and systemic recurrence alone in 13%, 76% had no evidence of recurrence at last follow-up. Age, tumor size, positive lymph nodes, and not receiving chemotherapy or hormonal therapy were independent predictors of LRR. Disease-specific survival among patients with LRR was similar to that among patients with no recurrence.ConclusionsMultidisciplinary treatment strategies should be used to accomplish durable locoregional control after BCT.

Pain and Quality of Life After Treatment in Patients With Locally Recurrent Rectal Cancer

PURPOSE Because survival in patients with locally recurrent rectal cancer (LRRC) is limited, pain control and quality of life (QOL) are important parameters. The purpose of this study was to assess the prevalence of posttreatment pain and QOL of patients with LRRC treated with nonsurgical palliation or resection and identify predictors of poor outcome. PATIENTS AND METHODS Posttreatment pain severity and QOL were prospectively assessed in 45 patients with LRRC using the Brief Pain Inventory and Functional Assessment of Cancer Therapy-Colorectal questionnaire. RESULTS Fifteen patients received nonsurgical palliation, and 30 patients underwent resection of their pelvic tumors. There was a significant association between higher posttreatment pain scores and worse QOL (P <.001). Patients treated with nonsurgical palliation reported moderate to severe pain beyond the third month of treatment. Resected patients reported comparable levels of pain during the first 3 postoperative years, particularly after bony resections; long-term survivors (beyond 3 years), however, reported minimal pain and good QOL. Female sex, pelvic/sciatic pain at presentation, total pelvic exenteration, and bony resection were associated with higher rates of moderate to severe posttreatment pain (P =.04, P <.001, P =.04, and P =.02, respectively). Pain at presentation was an independent predictor of posttreatment pain (odds ratio, 7.4 [95% confidence interval, 1.8 to 30.3]; P =.006). CONCLUSION Patients with LRRC treated with nonsurgical palliation or resection experience significant levels of pain after treatment. Close posttreatment pain monitoring is warranted in patients presenting with pelvic pain, and more aggressive pain management strategies may improve posttreatment QOL.

Comparison of clinicopathologic characteristics and outcomes after resection in patients with hepatocellular carcinoma treated in the United States, France, and Japan.

Objective: To compare the clinicopathologic characteristics and outcomes after resection of patients with hepatocellular carcinoma (HCC) treated in the United States, France, and Japan. Summary Background Data: Some epidemiologic data suggests that HCC in different regions of the world may represent different forms of the disease. Methods: We compared the patient and tumor characteristics, underlying liver damage, and surgical outcomes of 586 patients who underwent resection of HCC from a multi-institutional database. Results: A total of 169 patients were treated in the United States, 187 in France, and 230 in Japan. The median tumor size for patients treated in the United States was 8 cm, compared with 6 cm and 3.5 cm in France and Japan, respectively (P < 0.001); 20%, 38%, and 74% of patients in the United States, France, and Japan, respectively, had positive hepatitis C serology (P < 0.001). In addition, 65% of patients in Japan had severe fibrosis/cirrhosis in the adjacent liver compared with 52% and 23% of patients in France and the United States, respectively (P < 0.001). There was no association between site of treatment and 30-day (P = 0.4) or 1-year mortality (P = 0.3). The 5-year survival of patients treated in United States, France, and Japan was not statistically different (31% vs. 31% vs. 41%, respectively; P = 0.3). Conclusions: Although the etiology of HCC and clinicopathologic characteristics of patients treated at western and eastern centers vary widely, postresection 5-year survival is similar when controlling for these factors. Future studies should account for histopathologic differences using uniform criteria to allow better comparison of results.

Surgical treatment of hepatocellular carcinoma: Similar long-term results despite geographic variations

Recently, the International Cooperative Study Group for hepatocellular carcinoma (HCC) proposed a new staging based on data from multiple centers across the world. The new TNM staging has been shown to be more accurate in the prognostic classification of patients after resection for HCC. This staging is the basis for the new TNM for HCC approved by the AJCC (American Joint Committee on Cancer) and UICC (Union Internationale Contre le Cancer). Although the general applicability of the new staging system has been confirmed, there still remains a marked geographic variation in the clinicopathologic factors of HCC patients based on their country of origin. Tumor size, rates of hepatitis, and degree of underlying liver damage all vary significantly among countries. Despite these geographic variations, recent data reveal similar long‐term survival in Western and Eastern centers when these clinicopathologic factors are accounted for. Uniform criteria that account for these clinicopathologic differences need to be developed to assist in stratifying patients across hepatobiliary centers. (Liver Transpl 2004;10:S74–S80.)

Outcomes and Cost-Effectiveness of Alternative Staging Strategies for Non–Small-Cell Lung Cancer

PURPOSE To identify the optimal strategy for staging the mediastinum of patients with known non-small-cell lung cancer (NSCLC), stratified by tumor (T) classification. METHODS We used a decision-analytic model to compare the health outcomes and cost-effectiveness of three staging strategies: (1) chest computed tomography alone, (2) selective mediastinoscopy, and (3) routine mediastinoscopy. The overall effectiveness and cost of each strategy was a function of the proportion of patients accurately staged and the risks, benefits, and costs of the diagnostic tests and treatments used. Probability estimates and costs were derived from primary data and the literature. We adopted a societal perspective and calculated incremental cost-effectiveness ratios (ICERs) as cost per quality-adjusted life year (QALY) gained. RESULTS Both mediastinoscopy strategies correctly identified more patients with mediastinal involvement (N2/N3 disease) and assigned them to multimodal regimens. Routine mediastinoscopy maximized quality-adjusted life expectancy in all patients, irrespective of T classification, and this result was robust to varying the model estimates over their reported ranges. In T1 patients, selective mediastinoscopy cost

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24,500 per QALY gained, compared with

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78,800 per QALY gained for routine mediastinoscopy. In T2 and T3 patients, the ICER of routine mediastinoscopy was more favorable (

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42,800 and

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53,400 per QALY gained, respectively). CONCLUSION Routine mediastinoscopy maximizes quality-adjusted life expectancy in patients with known NSCLC, and its ICER compares favorably with other currently accepted medical technologies. The survival benefit and cost-effectiveness of this strategy are greater in patients with T2 and T3 tumors and are likely to improve with advances in multimodal therapy.